Improved wiidow-sash suppoeter



@umh 'm; @anni @fitta PHILIPP WENZEL, OF MEN TZ, GE tMANY, ASSIGNOR T O Ht C. LAUTERBAGK,

OF ROXBURY, MASSACHUSETTS.

s Latas maar No. 75,226, mamma 3,1868.

IMPRDVED WINDOW-SASH SUPPORTER.

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vT O ALL WHOM IT MAY CON CERN:

Be it known that I, PHLIPP WENZEL, a citizen of the United States, temporarily residing at the city of Mentz, Germany, have invented an Improvement in Supporting Window-Sashes; and I do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention sucient to enable those skilled in the art to practise it.

The invention relates to a method of supporting window-sashes without the aid of counterbalance-weights, and consists in the employment of spring-cylinders or rollers upon one or'both edges'of the sash, the peripheral surface of each roll being preferably covered with rubber or other elastic materia-l, and each roller being pressed against the sash by a spring, and being hung upon an arbor to which it is connected by a coiled spring, the roll being wound upon the arbor against the stress of the spring, in such manner, that when the sash is put into its casing, the tendency of the spring to rotate thc roll creates a stress upon thev sash tending to throw itnpwards,

The drawing represents a view oi' a window-frame and a sash with my invention applied thereto, the facce bcadsbeing broken away sufficiently to show the sash-supporting mechanism.

a denotes the window-frame; bb, the beads, which confine the sash d in place, and form guides or ways againstl which it runs. Mortising down into each side-post of the frame a recess, e, I hang therein, on a swingplate,f, a spring-barrel or roll, g, the outer or peripheral surface of which I cover with rubber or other elastic material z. Each roll is immediately hung and turns on an axis orl stem, a', projecting from the plate j', and within or upon one face of the roll I place a coiled spring, o, one end oi'which istixed` to the roll and the other end to the Iaxis 2', so that when the roll is turned in one direction, thc spring iscompressed, the stress of the spring then tending to turn it in the opposite direction. Each bearing or swing-platofis .hung loosely on a pin, c, and a spring, Z, throws each roll up againstV the edge of the sash, the stress upon the opposite rolls, (when two are used,) tending to keep the opposite edges oi' the sash from-binding in the frame whenv the sash is thrown up or down. y l

When thesash is to be inserted in the frame, the beads blz-are first removed. `'Each roll y is then turned in a'direction to compress its spring, and the sash with the springs so compressed is then sprung into place in theframe a,'t'he'springs being wound more er less, in accordance with the weight of the sashor the easewith which it is desirable to raise or lower it. i

Itwill'now be seen that when the sash is raised, the stress of the springs tending to turn the rolls, aids the power. of theperson to overcome the weight of the sash, and that this stress is easily made suiicient, in con nection with the inward pressure of the rolls by the springs a, to maintain the sash at any requisite height.

It will be obvious that only one spring-roll, or more than two, may be used in connection with one sash, thoughI consider the use of two, as shown and described, to be the best arrangement.

It will also be ohvious thatthe rolls may be applied to an upper or drop-sash, as well as to a lower one, the springs being' then so arranged as to tend to keep the sash closed or to'ai'd iniclosing it. i

Instead of smooth or friction-surfaced rolls, serrated or toothed wheels may be used in connectionwth seri-ations or teeth upon the edges of the sash, the springs being arranged substantially as described.

By an arrangement of spring-rolls, as shown and described, the sash is supported much more cheaply than by the use of weights, is much more easily raised and lowered, and applied to and removed from the windowframe, and is also lessliable to get out of order. v

(On one sideof the drawing, the spring-roll is shown in'elevation, and on the other side, the rollis represented as having its-head removed, to showthe coiled spring.) Y Y I claim the employment of a presser-roll or rolls, containing a spring or springs,1thc stress oi' which tends to turn the roll and toraise or support the sash, substantially as set forth.

PHILIPP WENZEL.

Witnesses:

FRANCIS GoULD, J. B. CROSBY. 

